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Question
- tans spends \\(\frac{2}{5}\\) of her earnings on a phone game. she spends half of her remaining money on music. if her favorite artist’s new album costs $10, how much money did tans have at first?
- mr. vance gets money for his birthday. he spends \\(\frac{2}{7}\\) of the money on new shoes. he gives the remaining money to 3 different charities. he gives the same amount to each charity.
a. what fraction of his money does mr. vance give to each charity?
b. if mr. vance gives $40 to each charity, how much money did he get for his birthday?
- leo uses three bags of flour to make cookies. the amount of flour in each bag is the following:
- \\(\frac{3}{4}\\) cups of flour
- \\(1\frac{1}{2}\\) cups of flour
- \\(1\frac{3}{4}\\) cups of flour
each batch of cookies needs \\(1\frac{1}{4}\\) cups of flour. how many batches of cookies can leo make?
- tyler has a pitcher of \\(1\frac{3}{4}\\) liters of lemonade. tyler pours an equal amount of lemonade into 3 cups. afterward, there is \\(\frac{1}{2}\\) liter of lemonade remaining in the pitcher. how many liters of lemonade are in each cup?
Problem 3 (Assuming the first problem about Tans spending money)
Step 1: Find remaining money after spending on game
Let total money be \( x \). She spends \( \frac{2}{5}x \) on a game. Remaining money is \( x-\frac{2}{5}x=\frac{3}{5}x \).
Step 2: Find money spent on clothes (half of remaining)
She spends half of remaining on clothes, so that's \( \frac{1}{2}\times\frac{3}{5}x = \frac{3}{10}x \).
Step 3: Given she spends $15 on clothes, find total money
If \( \frac{3}{10}x = 15 \), then \( x=15\div\frac{3}{10}=15\times\frac{10}{3}=50 \).
Step 4: Find money left (total - game - clothes)
Money on game: \( \frac{2}{5}\times50 = 20 \). Money on clothes: 15. Money left: \( 50 - 20 - 15 = 15 \).
Step 1: Total fraction spent on shoes and charity
He spends \( \frac{2}{7} \) on shoes and then distributes remaining \( 1 - \frac{2}{7}=\frac{5}{7} \) to 3 charities equally.
Step 2: Find fraction per charity
Fraction per charity: \( \frac{5}{7}\div3=\frac{5}{7}\times\frac{1}{3}=\frac{5}{21} \).
Step 1: Let total money be \( x \)
Fraction per charity is \( \frac{5}{21}x \), and it's given as $40. So \( \frac{5}{21}x = 40 \).
Step 2: Solve for \( x \)
\( x = 40\div\frac{5}{21}=40\times\frac{21}{5}=168 \).
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The money left is $15.